CD4018BF

Counter Dividers Overview

The CD4018BF is a CMOS presettable divide-by-N counter from the CD4000B series. It features a 5-bit synchronous binary up-counter architecture with independent parallel data inputs for presetting. The device operates within a supply voltage range of 3 V to 18 V and supports clock frequencies up to 17 MHz. It is housed in a 16-lead hermetic dual-in-line ceramic package (F3A suffix) and functions reliably across an extended temperature range of -55°C to +125°C.

Counter Dividers Feature Summary

• Supports synchronous binary up-counting with independent parallel data inputs for direct presetting.

Counter Dividers Applications

• Frequency division circuits
• Digital counting systems
• Timing control logic

Counter Dividers Procurement Notes

Verify the F3A suffix confirms the 16-lead hermetic dual-in-line ceramic package specification. Ensure compatibility with high-reliability requirements given the military-grade temperature range. Confirm RoHS status through official documentation as leaded variants may exist within the CD4018B family.

Counter Dividers Selection Notes

Select this component when hermetic packaging is required for harsh environments. The wide operating voltage range allows flexibility in power supply design. Verify that the synchronous count mode aligns with system timing constraints compared to asynchronous alternatives.

Counter Dividers Part Context

This part belongs to the Texas Instruments CD4000B series, which provides radiation-hardened and high-reliability options. The CD4018B variant specifically offers presettable functionality, distinguishing it from standard counters by allowing immediate value loading via parallel inputs rather than sequential counting.

Counter Dividers Replacement Considerations

CD4018BEE4 is a documented equivalent offering similar electrical characteristics in a different package configuration.